[tex]\huge{\boxed{8a-2}}\ \ \huge{\boxed{-18}}[/tex]
Distribute the [tex]3[/tex] to the [tex](3a-2)[/tex]. [tex]9a-6+4-a[/tex]
Move the common terms next to each other. [tex]9a-a-6+4[/tex]
Combine the variables. [tex]8a-6+4[/tex]
Combine the constants. [tex]\boxed{8a-2}[/tex]
Substitute in the variable. [tex]8(-2)-2[/tex]
Multiply. [tex]-16-2[/tex]
Subtract. [tex]\boxed{-18}[/tex]
